DESCRIPTION

These functions retrieve information on an extension statement
definition (SMIng) or a macro (SMIv1/v2).

The smiGetMacro() function retrieves a struct
SmiMacro that represents an extension or macro definition.
Macro may be either a fully qualified descriptor or a simple
macro or extension name. If smiModulePtr is not NULL it used
to limit the search to the given module. If the macro is not found,
smiGetMacro() returns NULL.

The smiGetFirstMacro() and smiGetNextMacro()
functions are used to iteratively retrieve struct SmiMacros.
smiGetFirstMacro() returns the first one defined in the
module specified by smiModulePtr. Subsequent calls to
smiGetNextMacro() return the following ones. If there are no
more extension or macro definitions in the module, NULL is
returned.

The smiGetMacroModule() function returns the module that
defines the macro or extension given by struct
SmiMacroPtr.